Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantos fins roubados contra onde estavam quando Thomas Dufour pulou?
 ###Tabelas: CREATE TABLE best_5_matches_by_atpworldtour.com (best_5_matches_by_atpworldtour.com_id AUTO_INCREMENT PRIMARY KEY, !Event INT, Round VARCHAR, Surface VARCHAR, Winner VARCHAR, Opponent VARCHAR, Result VARCHAR) CREATE TABLE standings (standings_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, Skip VARCHAR, W INT, L INT, PF INT, PA INT, Ends Won INT, Ends Lost INT, Blank Ends F/A VARCHAR, Stolen Ends For INT, Stolen Ends Against INT, Shot % INT) CREATE TABLE southern_railway_batch (southern_railway_batch_id AUTO_INCREMENT PRIMARY KEY, BRNo. INT, SRNo. VARCHAR, Name VARCHAR, Builder VARCHAR, Whenbuilt VARCHAR, Withdrawn VARCHAR) CREATE TABLE 2011_ladder (2011_ladder_id AUTO_INCREMENT PRIMARY KEY, South West DFL VARCHAR, Wins INT, Byes INT, Losses INT, Draws INT, Against INT) CREATE TABLE tertiary_institutions (tertiary_institutions_id AUTO_INCREMENT PRIMARY KEY, Institution VARCHAR, Location VARCHAR, Enrollment VARCHAR, Athletic nickname VARCHAR, School Colors VARCHAR, Founded INT)  
SELECT Stolen Ends Against FROM standings WHERE Skip = Thomas Dufour